By asking why, why, why? the National Parks Service uses Root Cause Analysis to solve a chronic problem and discovers the true (and surprising) reason why this National Monument was deteriorating. The uses of this quality method are revealed in this Juran Quality Minute.

The 5 Whys ( www.velaction.com ) is one of the simplest problem solving tools used in Lean manufacturing and Lean offices. This presentation shows how to use the 5 Whys, and what to watch out for. Created and presented by Jeff Hajek of Velaction Continuous Improvement.